Billy Vunipola, who has twice broken his right arm, ices his left arm after injuring it against Glasgow

This was a bruising opening test for Saracens in the Heineken Champions Cup, but their victory was overshadowed by a double injury blow to the Vunipola brothers, Mako and Billy, that could adversely affect both their club and England in the coming weeks.

With Eddie Jones, the England head coach, due to name his squad for the autumn internationals on Thursday, injuries to two key ball-carrying forwards would come as a serious blow. In a fierce encounter, Maro Itoje and Jamie George both suffered broken noses, while Owen Farrell, Alex Lozowski and Nick Isiekwe were also nursing blows.

In a worrying sight for England, Mako sits with his left leg in a moon boot while Billy ices his left armDavid Rogers/Getty Images

Mako, the loose-head prop, limped off in the 22nd minute, his left ankle heavily strapped, with what was reported as a calf injury and he was followed…

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